Blockage-removing and dust-collecting device for dust-removing powdery material conveying pipeline
By designing a device including feed pipe, ash storage cylinder and filter bag, the environmental pollution caused by blockage of dust removal ash conveying pipelines in blast furnace ironmaking process is solved, and the closed collection and disposal of dust is achieved, which improves processing efficiency and ensures environmental safety.
Patent Information
- Application Number
- CN202421340312.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In blast furnace ironmaking process, dust removal ash conveying pipelines are often blocked, resulting in the ash delivery system being shut down, ash accumulation of ash bucket, and the efficiency of electro-dust removal is reduced. When directly purged and cleaned, dust spillage and polluted the environment.
A device including a feed pipe, a feed valve, ash storage cylinder, ash discharge valve, a pressure plate, a filter bag keel and a filter bag is designed. By opening holes behind the bottleneck of the ash delivery pipe and welding the feed pipe, the blocked powdered material is blown into the ash storage cylinder, filtered and deposited by the filter bag, ensuring that the dust is collected and disposed of in a closed state.
It realizes the closed collection and disposal of powdered materials during the purge and cleaning of ash pipe blocked pipe, avoids dust spillage, ensures that the environment is not polluted, and improves the treatment efficiency and avoids destructive removal of ash pipe.
Smart Images
Figure CN222788779U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of metallurgical equipment, and further belongs to the technical field of ironmaking sintering dust removal systems, and specifically relates to a dust removal powder material conveying pipeline blockage removal and dust collection device with simple structure, reliable operation and easy operation. Background Art
[0002] In the blast furnace ironmaking process, iron ore is first processed into sintered ore on a sintering machine, and then the sintered ore is added to the blast furnace for ironmaking. In order to meet environmental protection requirements, the sintering machine is equipped with an electrostatic precipitator at the head, a tail and a whole-grain bag dust collector. The powdered dust collected by the dust collector is transported to the ash bin through a pneumatic conveying pipeline for recycling and secondary use. The entire dust ash transportation process requires a closed system, and no dust or leakage can be generated to cause environmental pollution. However, in the actual production and operation process, the most common fault is the blockage of the dust ash transportation pipeline, which causes the ash conveying system to stop operating, ash accumulation in the ash hopper, and a decrease in the efficiency of the electrostatic precipitator. If the ash conveying pipeline is seriously blocked, the pipeline must be disassembled at the blocked point, and the blocked pipeline must be purged and cleared until the blocked pipeline is cleared. However, directly blowing the blocked pipeline and directly discharging the dust will cause serious pollution to the surrounding environment, forming dust overflow and causing unorganized emissions. Therefore, the key to solving this problem is to research and develop a dust removal and dust collection device for powder material conveying pipeline with simple structure, reliable operation and easy operation. Utility Model Content
[0003] The utility model aims to provide a dust collecting device for removing blockage of a dust-removing powdery material conveying pipeline, which has the advantages of simple structure, reliable operation and easy operation.
[0004] The purpose of the utility model is achieved in this way, including a feed pipe, a feed valve, an ash storage barrel, a discharge valve, a pressure plate, a filter bag keel, and a filter bag, wherein a feed pipe is arranged in the middle and lower part of the ash storage barrel; a feed valve is arranged on the feed pipe; one end of the feed pipe is connected to the ash storage barrel, and the other end is connected to the ash conveying pipe; the connection point between the feed pipe and the ash conveying pipe is located behind the blockage point of the ash conveying pipe; a discharge valve is arranged at the bottom of the ash storage barrel; a filter bag keel is arranged on the top of the ash storage barrel; a filter bag is arranged on the filter bag keel; and the filter bag is fixedly connected to the top end of the ash storage barrel through a pressure plate.
[0005] The utility model is composed of a feed pipe, a feed valve, an ash storage cylinder, a discharge valve, a pressure plate, a filter bag keel and a filter bag; the feed pipe is connected to the ash storage cylinder along the tangent direction of the ash storage cylinder, so that the material enters the ash storage cylinder and moves in a spiral shape; the filter bag can filter the gas dust; the gas dust is introduced into the ash storage cylinder through the feed pipe, the dust is filtered by the filter bag and deposited in the lower part of the ash storage cylinder, and the positive pressure of the gas is filtered through the filter bag and then discharged.
[0006] The working steps are as follows:
[0007] 1. Drill a hole behind the blockage point of the ash conveying pipe, and the diameter of the hole should be consistent with the outer diameter of the feed pipe; weld the feed pipe at the hole, open the feed valve, and close the discharge valve.
[0008] 2. Start the pneumatic ash conveying system to purge the ash conveying pipe. Under the action of pneumatic force, the powdered material blocked inside the ash conveying pipe enters the ash storage cylinder along the feed pipe. After being filtered by the filter bag, the powdered material is deposited at the bottom of the ash storage cylinder. The positive pressure of the gas in the ash storage cylinder is filtered through the filter bag and then discharged.
[0009] 3. After a certain period of collection, close the feed valve, open the discharge valve, collect and process the powdered materials in the ash storage cylinder uniformly, and repeat the above operation after the powdered materials in the ash storage cylinder are cleaned up, gradually blowing and clearing the blocked materials in the ash conveying pipe, thereby ensuring that the powdered materials are collected and disposed of in a closed state during the entire pipeline blowing and cleaning process.
[0010] The utility model can realize the closed collection and disposal of powdered materials generated during the ash conveying pipe blockage blowing and cleaning process, ensuring that dust does not overflow, ensuring that the surrounding environment is not polluted, and at the same time ensuring the safety of production and personnel. When dealing with the ash conveying pipe blockage, there is no need to destructively dismantle the ash conveying pipe or open a large gap, only one discharge hole is needed, so the efficiency of dealing with the pipe blockage is greatly improved.
[0011] The utility model discloses the dust removal device has the advantages of simple structure, reliable operation and easy operation, and can effectively collect dust released by the dust removal powder material conveying pipeline due to blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] In the figure: 1-feed pipe, 2-feed valve, 3-ash storage cylinder, 4-discharge valve, 5-pressure plate, 6-filter bag keel, 7-filter bag, 8-ash conveying pipe, 9-ash conveying pipe blockage point. DETAILED DESCRIPTION
[0014] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes made based on the teachings of the present invention fall within the protection scope of the present invention.
[0015] like Figure 1As shown, the utility model includes a feed pipe 1, a feed valve 2, an ash storage barrel 3, a discharge valve 4, a pressure plate 5, a filter bag keel 6, and a filter bag 7. The feed pipe 1 is arranged in the lower part of the ash storage barrel 3; the feed valve 2 is arranged on the feed pipe 1; one end of the feed pipe 1 is connected to the ash storage barrel 3, and the other end is connected to the ash conveying pipe 8; the connection point between the feed pipe 1 and the ash conveying pipe 8 is located behind the ash conveying pipe blocking point 9; the discharge valve 4 is arranged at the bottom of the ash storage barrel 3; the filter bag keel 6 is arranged on the top of the ash storage barrel 3; the filter bag 7 is arranged on the filter bag keel 6; the filter bag 7 is fixedly connected to the top of the ash storage barrel 3 through the pressure plate 5.
[0016] The feed valve 2 is arranged at the end of the feed pipe 1 close to the ash conveying pipe 8.
[0017] The feed valve 2 and the feed pipe 1 are connected by a flange.
[0018] The feed valve 2 is a manual ball valve.
[0019] The body of the ash storage cylinder 3 is a cylinder, and the bottom is a cone.
[0020] The feed pipe 1 is connected to the ash storage barrel 3 along the tangent direction of the ash storage barrel 3 .
[0021] The discharge valve 4 and the ash storage cylinder 3 are connected by flanges.
[0022] The discharge valve 4 is a manual ball valve.
[0023] The pressing plate 5 is connected to the ash storage cylinder 3 via bolts.
[0024] The working principle and working process of this utility model:
[0025] The utility model is composed of a feed pipe 1, a feed valve 2, an ash storage cylinder 3, a discharge valve 4, a pressure plate 5, a filter bag keel 6, and a filter bag 7; the feed pipe 1 is connected to the ash storage cylinder 3 along the tangent direction of the ash storage cylinder 3, so that the material enters the ash storage cylinder 3 and moves in a spiral shape; the filter bag 7 can filter the gas dust; the gas dust is introduced into the ash storage cylinder 3 through the feed pipe 1, and the dust is filtered by the filter bag 7 and deposited at the lower part of the ash storage cylinder 3, and the gas positive pressure is filtered through the filter bag 7 and then discharged.
[0026] The working steps are as follows:
[0027] 1. Drill a hole behind the ash conveying pipe blockage point 9, the diameter of the hole is adapted to the outer diameter of the feed pipe 1; weld the feed pipe 1 at the hole; open the feed valve 2 and close the discharge valve 4.
[0028] 2. Start the pneumatic ash conveying system to purge the ash conveying pipe 8. Under the action of pneumatic force, the powdery materials blocked inside the ash conveying pipe 8 enter the ash storage cylinder 3 along the feed pipe 1. After being filtered by the filter bag 7, the powdery materials are deposited in the lower part of the ash storage cylinder 3. The positive pressure of the gas in the ash storage cylinder 3 is filtered by the filter bag 7 and then discharged.
[0029] 3. After a certain period of collection, close the feed valve 2, open the discharge valve 4, and collect and process the powdered materials in the ash storage cylinder 3. Repeat the above operation after the powdered materials in the ash storage cylinder 3 are cleaned up, and gradually blow and clean up the blocked materials in the ash conveying pipe 8, thereby ensuring that the powdered materials are collected and disposed of in a closed state during the entire pipeline blowing and cleaning process.
Claims
1. A dust removal and dust collection device for removing blockage in a powdery material conveying pipeline, comprising a feed pipe (1), a feed valve (2), an ash storage cylinder (3), a discharge valve (4), a pressure plate (5), a filter bag keel (6), and a filter bag (7), wherein: A feed pipe (1) is arranged at the middle and lower part of the ash storage barrel (3); a feed valve (2) is arranged on the feed pipe (1); one end of the feed pipe (1) is connected to the ash storage barrel (3), and the other end is connected to the ash conveying pipe (8); the connection point between the feed pipe (1) and the ash conveying pipe (8) is located behind the blockage point (9) of the ash conveying pipe; a discharge valve (4) is arranged at the bottom of the ash storage barrel (3); a filter bag keel (6) is arranged at the top of the ash storage barrel (3); a filter bag (7) is arranged on the filter bag keel (6); the filter bag (7) is fixedly connected to the top of the ash storage barrel (3) through a pressure plate (5).
2. The dust removal and dust collecting device for removing blockage of a powdery material conveying pipeline according to claim 1 is characterized in that: The feed valve (2) is arranged at the end of the feed pipe (1) close to the ash conveying pipe (8).
3. The dust removal and dust collecting device for removing blockage in a powdery material conveying pipeline according to claim 1 is characterized in that: The feed valve (2) and the feed pipe (1) are connected by a flange.
4. The dust removal and dust collecting device for removing blockage of a powdery material conveying pipeline according to claim 1 is characterized in that: The feed valve (2) is a manual ball valve.
5. The dust removal and dust collecting device for removing blockage of powdery material conveying pipeline according to claim 1 is characterized by: The ash storage cylinder (3) has a cylindrical body and a conical bottom.
6. The dust removal and dust collecting device for removing blockage of a powdery material conveying pipeline according to claim 1 is characterized by: The feed pipe (1) is connected to the ash storage barrel (3) along the tangent direction of the ash storage barrel (3).
7. The dust removal and dust collecting device for removing blockage of powdery material conveying pipeline according to claim 1 is characterized by: The discharge valve (4) and the ash storage cylinder (3) are connected by a flange.
8. The dust removal and dust collecting device for removing blockage of a powdery material conveying pipeline according to claim 1 is characterized by: The discharge valve (4) is a manual ball valve.
9. The dust removal and dust collecting device for removing blockage of a powdery material conveying pipeline according to claim 1 is characterized by: The pressing plate (5) and the ash storage cylinder (3) are connected via bolts.